我如何解决 Javascript Fetch 的问题

Question

Below committed code is axios. Which is working fine. But javascript fetch is not working. Let me know what is the issue in the code. How to fix it. Please explain it in a simple way. Thanks!

import React, {useEffect, useState} from 'react'
import axios from 'axios'

function Datafetching() {
    const [posts, setposts] = useState([])

    const getMovieRequest = async () => {
        const url = `http://jsonplaceholder.typicode.com/posts`;
        
  
        const response = await fetch(url);
        const responseJson = await response.json()
     
        if (responseJson.data){
            setposts(responseJson.data)
            console.log(responseJson.data)
                }
        
           }

    useEffect(() => {
        // axios.get('http://jsonplaceholder.typicode.com/posts')
        // .then(res => {
        //     console.log(res)
        //     setposts(res.data)
        // })
        // .catch(err => {
        //     console.log(err)
        // })

        getMovieRequest()        
    })



    return (
        <div>
            <ul>{
                posts.map(post => <li key={post.id}>{post.title}</li>)
                }
            </ul>
            
        </div>
    )
}

export default Datafetching

Answer 1

responseData contains the data as array, not responseData.data :

if (responseJson){
     setposts(responseJson)
     console.log(responseJson)
}